![]() The other three regions – Greater Sacramento, northern California and San Francisco Bay area – ranged between 20% to 28% in capacity. Please follow our advice to keep yourself, your family and your neighbors safe.” We can only get through this if we work together. “This is an alarming situation that could get much worse. “Our only hospital in San Benito county is completely full,” said Dr David Ghilarducci, the San Benito county public health officer. The surge in cases has overrun the hospital capacities of more rural regions in particular, such as San Benito county, which is included in the San Joaquin Valley region and is under lockdown. “I can’t emphasise this enough – everyone must take personal steps to protect themselves and protect others.” “Surging cases and hospitalizations are not letting up,” said Dr Salvador Sandoval, the public health officer for the city of Merced. Together the two regions are home to more than half of California’s 40 million population. ![]() The figure was at 6.3% for the San Joaquin Valley, a dozen counties in the Central Valley and rural areas of the Sierra Nevada. The 11-county southern California region, which includes Los Angeles and San Diego, had only 10.9% of ICU beds available, the state reported on Monday. Hospitalizations have topped 10,000 in a 72% increase over the past 14 days, with more than 2,300 patients in ICU care. ![]() Photograph: Mike Blake/ReutersĪcross the US, 101,487 people were being treated in hospital with Covid-19 on Sunday, according to the Covid Tracking Project, and an additional 1,138 deaths were recorded.Ĭalifornia has recorded more than 1.3m cases, setting a new daily record on Sunday with 30,075. “We also want to make sure communities most affected by emissions are getting the air quality benefits of reducing CO2.A sign in Oceanside, California, warns against gathering as the new stay-at-home orders take effect. “As the world gets more serious about mitigating climate-warming CO2, we need metrics to let us know if we’re doing a good job of reducing it,” Hopkins said. Then they could use measurements of the grass in that area to measure the success of that action. However, these measurement systems cannot offer neighborhood-scale observations needed to inform policies intended to reduce greenhouse gas emissions and ultimately, climate change.įor example, cities could decide to reduce their carbon footprint by restricting vehicle traffic on a particular road or closing down another known source of emissions. In addition, existing satellite or urban tower networks can measure CO2 in more economically developed cities. It’s less expensive and lets us measure in new locations that weren’t previously possible.” “Grass already got the CO2 out of the air and did a lot of the work for us. “People traditionally measure radiocarbon in the air by collecting large, 2-liter flasks of air, which you then have to take to a lab and extract. The researchers have found that using wild grasses offers several advantages over other techniques. However, the city’s 19th Avenue, where traffic was redirected, showed a big increase in fossil fuel CO2 based on radiocarbon content in the grass.Ĭloseup of wild grass sample used to understand the distribution of fossil fuel emissions in California. Since the city’s Great Highway remained closed to cars until the end of 2021, it retained its low emissions levels into 2021. “Other likely factors include the number of low-emission or electric vehicles in an area, and distance from industrial warehouses, with heavy big-rig traffic.”ĭrilling down further, the study detailed emissions levels on specific roadways in San Francisco. “We believe many of the differences we saw can be attributed to how many people are able to continue working remotely,” Hopkins said. ![]() Both the Los Angeles metro area and Pasadena had bigger pollution rebounds than the coast, or than the state as a whole. The team’s grass samples revealed that coastal Orange County retained their pandemic-related reduction in emissions, and that San Francisco has fared better than Los Angeles. “Plants absorb CO2 during photosynthesis and incorporate it into their tissues, recording a snapshot of local fossil fuel inputs in the process,” said study lead Cindy Yañez, formerly of UCR, now an Earth System Sciences doctoral student at UC Irvine. Graduate student Cindy Yañez taking inventory of plant samples mailed in by community scientists for radiocarbon dating. ![]()
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